William hadden



(No Model.)

' W. HADDEN.

TELEPHONE SWITCH.

` No. 312,843. Patented,Febiw24,-l8v85.

UNITED STATES PATENT OFFICE.

VILLIAM HADDEN, OF BROOKLYN, NEWT YORK.

TELEPHONE-swirci-I.

SPECIFICATION forming part of Letters Patent No. 312,843, dated February 24, 1885.

Application filed June 18, 1884.

To @ZZ whom t may concern:

Be it known that I, VILLLIM HADDEN, a citizen of the United States, residing in Brooklyn, in the county ot' Kings and State ot' New York, have invented certain new and useful Improvements in Telephone-Switches, ot' which the following is a specification. l

The object of my invention is to provide a device whereby a telephone may be manually put into or removed from the line-circuit, and which is so arranged that the line can he used` when the telephone is in circuit. while the circuit must be again changed from the telephone to the call before the former can be replaced upon its proper support.

The invention consists in providing a swinging cover for the mouth-piece of the transmitter, and which must be turned aside be fore the latter can be used, and in placing a support for the telephone in sucha position that the cover can only be removed from the transmitter after the telephone is taken from its support. The movements of the swinging arm also make the necessary circuit connections from the call to the telephone, and viceversa.

In the accompanying drawings, which illustrate my invention, Figure lis an elevation of a telephonie instrument, and Fig. 2is asectional view of the front of the same through the line 2 2 of Fig. I.

In the drawings, Tis the front case of the instrument; t, the telephone, which hangs when not in use on the hook B. A is the swinging cover for the mout-h-piece of the transmitter, which latter is shown in dotted lines beneath. The cover is fixed to the lower end of the arm A,which turns upon the pivot A. Immediately behind the front ofthe case of the instrument the two arms a and b are attached to the pivot A, and these arms make connection by suitable stops with the wires l und 2 when the device is in the position shown in full lines in the drawings. rIhe wires land 2 connect the circuit with the ordinary callbell. Then a call is received, the operator takes the telephone from the support B, and he can then push the swinging cover aside into the position shown in dotted 1ines,there by exposing the mouth-piece of the transmitter and covering the support B of the telephone. The same movement changes the posi- (No model.)

tion of the arms a and b into those shown as a and b', thereby making contact with the stops connected with wires 3 and 4, and these make the circuit through the telephone. When the conversation is over,the operator must return the cover to its original position, thereby putting the telephone out ot'and the call again into circuit before he can place the former upon its support B. The stops s s on each side ofthe arm limit the movement of the cover in either direction. This simple device gives to manual operations the certainty and quickness ofautomatic movements for the purposes set forth.

I claim as my inventionl. rIhe combination, in a telephonie instrument, ot' a movable cover for the mouth-piece aperture of the transmitter and asupport for the receiver, so placed that the said receiver when supported thereby preventsthe movement of said cover.

2. Thecombinatiomwith atelephonictransmitter and receiver, ot' a movable cover applied to the mouth-piece aperture ofthe transmitter, a support for the receiver, so placed that the said receiver when supported thereby shall prevent the removal ot' said cover, and a circuit-changing device, substantially such as described,operated by the movements of said cover.

3. The combination, substantially as hereinbefore set forth, with a telephonie transmitter, of a movable cover for the mouth-piece aperture, and a support for the receiver in the path of the cover, so thatthe cover can only be removed from its normal position when the receiver is away from its support, and a stop serving to prevent said cover from4 being moved beyond said support when it is moved from its normal position.

4. The combination of the telephonie instrument T, the movable cover A, the support B, the stops s s, and the switch-arms a and b.

In testimony whereof I have hereunto subscribed my name this 12th day of June, A. D. 1881.

Y/ ILLIAM HADDEN.

W'itnesses:

DANI.. W. EnGEooME, CARRIE E. DAvrDsoN. 

